138861382175705 has 32 divisors (see below), whose sum is σ = 190769676733440. Its totient is φ = 95053652467200.

The previous prime is 138861382175687. The next prime is 138861382175723. The reversal of 138861382175705 is 507571283168831.

It is an interprime number because it is at equal distance from previous prime (138861382175687) and next prime (138861382175723).

It is not a de Polignac number, because 138861382175705 - 2¹⁰ = 138861382174681 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287496467 + ... + 287979063.

It is an arithmetic number, because the mean of its divisors is an integer number (5961552397920).

Almost surely, 2^{138861382175705} is an apocalyptic number.

It is an amenable number.

138861382175705 is a deficient number, since it is larger than the sum of its proper divisors (51908294557735).

138861382175705 is a wasteful number, since it uses less digits than its factorization.

138861382175705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496889.

The product of its (nonzero) digits is 67737600, while the sum is 65.

The spelling of 138861382175705 in words is "one hundred thirty-eight trillion, eight hundred sixty-one billion, three hundred eighty-two million, one hundred seventy-five thousand, seven hundred five".